# Hazardous Materials: Response to an Industry Petition To Reduce Regulatory Burden for Cylinder Requalification Requirements
> **Pipeline and Hazardous Materials Safety Administration** · Final rule. · Published 2020-10-30 · Effective 2020-11-30 · 85 FR 68790
## Document
- **Document number:** 2020-22483
- **Category:** hazmat
- **Sub-agency:** Pipeline and Hazardous Materials Safety Administration
- **Federal Register citation:** 85 FR 68790
- **CFR reference:** 49 CFR 180
- **Publication date:** 2020-10-30
- **Effective date:** 2020-11-30
- **DOT docket:** Docket No. PHMSA-2017-0083 (HM-219B)
## Abstract

The Pipeline and Hazardous Materials Safety Administration (PHMSA) is amending the requirements of the requalification periods for certain Department of Transportation (DOT) 4-series specification cylinders in non-corrosive gas service in response to a petition for rulemaking submitted by the National Propane Gas Association (NPGA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/10/30/2020-22483/hazardous-materials-response-to-an-industry-petition-to-reduce-regulatory-burden-for-cylinder)
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